A nickel compound has the formula Ni(NO3)2•xH,0 and a molar mass of 290.7 g mol-1. Calculate the value of x.
Someone tell me the method for this

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?